Problems with SIP phone?

Question

Telephony

Good day!
The problem occurs with an IP phone: the phone is connected to the network, it is assigned a static IP address, it is powered by PoE. As soon as you put everything, everything works like clockwork. The fact is that after some indefinite time, the phone loses the network, although it is turned on (that is, it is powered by PoE), does not dictate its address, and is also invisible in the grid.
The problem occurs with a phone of one model: Fanvil H3. Can anyone come across this?

Answer 1

Flash, dealt with a slightly different model and the same symptoms.